I'm sort of surprised to see so much dredlock dude support on AT, thought most here enjoyed pissing out the window on their types while drove by them in their lambo.
My gut reaction upon seeing the photo is that they're a family of carnies that finally decided to settle down in the big city. Sorry, that's just my honest superficial assessment. But since its craigslist the whole thing is probably entirely made up and a guy who looks nothing like that would show up and rob your house through the interior garage door.
Anyway, pleading poverty is all marketing just like everything else. Probably the best bet for the dad to shave his head and claim he's undergoing treatment for cancer. If that doesn't work, shave the rest of the families heads.